核心架构请查阅 canvas-select 组件，一个用于图片标注的 javascript 库，基于 canvas，简单轻量，支持矩形、多边形、点、折线、圆形标注、网格标注。 使用离屏 canvas 绘制静态背景图片，避免频繁绘制。 避免浮点数运算，使用 Math.round()或 Math.floor()进行取整。

In the cold days of December, as Yerevan was wrapped in winter’s breath, young artist Davit Minasyan created a true island of ...

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These tags add menus, toggles, media, forms, and responsive images with minimal code.

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In this energisingly original novel, an emotionally detached English student at college in New York tells a big lie Lies offend our sense of justice: generally, we want to see the liar unmasked and ...

Safari Technology Preview 235 版本包含了针对 CSS、Canvas、剪贴板、HTML、JavaScript 以及 MathML 等核心技术的修正与优化。 此外，该版本也对媒体处理、网络功能、转译表现、Web ...

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National Chocolate Cake Day on Jan. 27 is an open invitation to bend the rules and make a classic cake even more irresistible ...

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